| Title |
SO_2 and CO Removal Characteristics in Various Applied Voltage of Nonthermal Discharge Plasma in a Crossed DC Magnetic Field |
| Authors |
이근택(Lee, Geun-Taek) ; 금상택(Geum, Sang-Taek) ; 문재덕(Mun, Jae-Duk) |
| Keywords |
SO_2 and CO gas removal ; Nonthermal discharge plasma ; Crossed dc magnetic field ; Electrophysicochemical actions |
| Abstract |
SO_2and CO gas removal characteristics of a wire-to-cylinder type nonthermal discharge plasma reactor in various applied voltage (-dc, ac, fast rising pulse and high frequency pulse) and a crossed dc magnetic field have been investigated. The experiment has been emphasized on the oxidizing characteristics of SO_2 and CO gas by O_3 and the applying of a crossed magnetic field, which would induce the cyclotronic and drift motions of electrons making the residual time longer in the removal airgap space. And it also would enhance the energy of electrons and the electrophysicochemical actions to remove the pollutant gases effectively. It is found thatthe corona onset voltage and the breakdown voltage were decreased with increasing the crossed magnetic field and decrease initial fed SO_2and CO concentration. As a result, a higher ozone generation and SO_2 and CO gas removal rate of 20[%] can be obtained with -dc, ac and fast rising pulse corona discharges in the crossed dc current-induced magnetic field. But high frequency pulse didn't show effect in applying of a crossed magnetic field. |